Insider · CIK 0001660125
Grigorios Siokas
ceoofficerdirectorowner
Files at COSM (Cosmos Health Inc.). First filing Oct 12, 2023, latest Jul 31, 2026.
In brief
Grigorios Siokas files SEC Form 4 as CEO, director and 10% owner at COSM (Cosmos Health Inc.). Since Oct 12, 2023, Grigorios Siokas has reported 43 open-market buys worth $3.5M and 0 open-market sells worth $0, the latest filed on Jul 31, 2026.
After Grigorios Siokas's past buys, the stock trailed the S&P 500 by a median 50.7% over six months (n = 38), and 37% of those buys were ahead of the index at six months. InsiderTell labels that a negative record.
The newest scored trade: bought $70k of COSM on Jul 30, 2026, filed Jul 31, 2026, scored 41 (moderate). In the last 12 months: 20 buys worth $1.7M and 0 sells worth $0.
Track record
Negative
Past buys trailed the index over six months, median.
Median 6-month excess
-50.7%
after past buys, n = 38
Hit rate
37%
past buys that beat the index over 6 months
Open-market trades
43 / 0
$3.5M bought, $0 sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
COSM: Cosmos Health Inc.
COSMOct 12, 2026 · close 0.35
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 41Moderate | COSMbuy Cosmos Health Inc. | $70k 349,825 shares | +2% | +16% from low-84% from high | |
| 57Moderate | COSMbuy Cosmos Health Inc. | $140k 766,284 shares | +6% | +6% from low-85% from high | |
| 65Notable | Cosmos Health Inc. | $160k 701,447 shares | +6% | +2% from low-82% from high | |
| 62Notable | Cosmos Health Inc. | $45k 218,447 shares | +2% | 0% from low-84% from high | |
| 49Moderate | COSMbuy Cosmos Health Inc. | $145k 388,532 shares | +5% | +17% from low-70% from high | |
| 48Moderate | COSMbuy Cosmos Health Inc. | $120k 291,262 shares | +4% | +30% from low-67% from high | |
| 44Moderate | COSMbuy Cosmos Health Inc. | $45k 90,325 shares | +1% | +57% from low-60% from high | |
| 49Moderate | COSMbuy Cosmos Health Inc. | $175k 353,321 shares | +5% | +56% from low-60% from high | |
| 53Moderate | COSMbuy Cosmos Health Inc. | $220k 493,495 shares | +7% | +40% from low-64% from high | |
| 45Moderate | COSMbuy Cosmos Health Inc. | $57k 113,185 shares | +2% | +58% from low-60% from high | |
| 47Moderate | COSMbuy Cosmos Health Inc. | $81k 156,190 shares | +2% | +63% from low-58% from high | |
| 46Moderate | COSMbuy Cosmos Health Inc. | $65k 124,880 shares | +2% | +64% from low-58% from high | |
| 46Moderate | COSMbuy Cosmos Health Inc. | $72k 133,953 shares | +2% | +69% from low-57% from high | |
| 44Moderate | COSMbuy Cosmos Health Inc. | $43k 88,314 shares | +1% | +53% from low-61% from high | |
| 46Moderate | COSMbuy Cosmos Health Inc. | $70k 168,472 shares | +3% | +31% from low-67% from high | |
| 45Moderate | COSMbuy Cosmos Health Inc. | $49k 76,360 shares | +1% | +102% from low-49% from high | |
| 39Weak | COSMbuy Cosmos Health Inc. | $35k 55,732 shares | +1% | +97% from low-50% from high | |
| 39Weak | COSMbuy Cosmos Health Inc. | $38k 56,080 shares | +1% | +113% from low-46% from high | |
| 38Weak | COSMbuy Cosmos Health Inc. | $32k 51,315 shares | +1% | +96% from low-50% from high | |
| 39Weak | COSMbuy Cosmos Health Inc. | $40k 61,614 shares | +1% | +104% from low-48% from high | |
| 33Weak | COSMbuy Cosmos Health Inc. | $15k 34,004 shares | +1% | +41% from low-61% from high | |
| 46Moderate | COSMbuy Cosmos Health Inc. | $63k 141,825 shares | +2% | +39% from low-61% from high | |
| 47Moderate | COSMbuy Cosmos Health Inc. | $82k 174,172 shares | +3% | +48% from low-59% from high | |
| 46Moderate | COSMbuy Cosmos Health Inc. | $66k 147,563 shares | +3% | +41% from low-61% from high | |
| 44Moderate | COSMbuy Cosmos Health Inc. | $34k 79,254 shares | +1% | +35% from low-62% from high | |
| 48Moderate | COSMbuy Cosmos Health Inc. | $102k 254,618 shares | +5% | +26% from low-65% from high | |
| 46Moderate | COSMbuy Cosmos Health Inc. | $71k 177,234 shares | +3% | +26% from low-65% from high | |
| 47Moderate | COSMbuy Cosmos Health Inc. | $82k 205,000 shares | +4% | +26% from low-65% from high | |
| 46Moderate | COSMbuy Cosmos Health Inc. | $63k 175,000 shares | +4% | +13% from low-68% from high | |
| 63Notable | COSMbuy Cosmos Health Inc. | $208k 654,912 shares | +16% | 0% from low-72% from high | |
| 36Weak | COSMbuy Cosmos Health Inc. | $45k 85,714 shares | +2% | - | |
| 38Weak | COSMbuy Cosmos Health Inc. | $65k 132,572 shares | +3% | - | |
| 45Moderate | COSMbuy Cosmos Health Inc. | $200k 354,296 shares | +10% | - | |
| 36Weak | COSMbuy Cosmos Health Inc. | $34k 51,414 shares | +1% | - | |
| 30Weak | COSMbuy Cosmos Health Inc. | $30k 38,900 shares | +1% | - | |
| 30Weak | COSMbuy Cosmos Health Inc. | $25k 29,158 shares | +1% | - | |
| 36Weak | COSMbuy Cosmos Health Inc. | $40k 47,904 shares | +1% | - | |
| 37Weak | COSMbuy Cosmos Health Inc. | $50k 62,500 shares | +2% | - | |
| 37Weak | COSMbuy Cosmos Health Inc. | $60k 87,247 shares | +2% | - | |
| 40Moderate | COSMbuy Cosmos Health Inc. | $100k 163,666 shares | +4% | - | |
| 47Moderate | Cosmos Health Inc. | $150k 257,334 shares | +7% | - | |
| 30Weak | Cosmos Health Inc. | $50k 60,000 shares | +4% | +7% from low-81% from high | |
| 34Weak | COSMbuy Cosmos Health Inc. | $159k 6,712 shares | +1% | +1667% from low-94% from high |
Transactions
Every row this insider has filed, 45 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 30, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +349,825 | $0.20 | $70k | 14,597,917 | Jul 31, 2026 |
| Jul 29, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +766,284 | $0.18 | $140k | 14,248,092 | Jul 30, 2026 |
| Jun 10, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +701,447 | $0.23 | $160k | 13,263,361 | Jun 12, 2026 |
| Jun 11, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +218,447 | $0.21 | $45k | 13,481,808 | Jun 12, 2026 |
| May 19, 2026 | COSM Cosmos Health Inc. | AGrant or award Common Stock, par value $.001 | +2,350,000 | $0.28 | $665k | 12,561,914 | Jun 11, 2026 |
| May 19, 2026 | COSM Cosmos Health Inc. | CConversion Restricted Stock Unitderivative | -2,350,000 | $0.00 | $0 | 0 | Jun 11, 2026 |
| Feb 12, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +388,532 | $0.37 | $145k | 8,861,914 | Feb 13, 2026 |
| Feb 11, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +291,262 | $0.41 | $120k | 8,473,382 | Feb 12, 2026 |
| Jan 23, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +90,325 | $0.50 | $45k | 8,182,120 | Jan 26, 2026 |
| Jan 20, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +353,321 | $0.50 | $175k | 8,091,795 | Jan 21, 2026 |
| Jan 14, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +493,495 | $0.45 | $220k | 7,738,474 | Jan 15, 2026 |
| Jan 12, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +113,185 | $0.50 | $57k | 7,244,979 | Jan 13, 2026 |
| Jan 8, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +156,190 | $0.52 | $81k | 7,131,794 | Jan 9, 2026 |
| Jan 7, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +124,880 | $0.52 | $65k | 6,975,604 | Jan 8, 2026 |
| Jan 6, 2026 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +133,953 | $0.54 | $72k | 6,850,724 | Jan 7, 2026 |
| Dec 19, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +88,314 | $0.49 | $43k | 6,716,771 | Dec 22, 2025 |
| Dec 15, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +168,472 | $0.42 | $70k | 6,628,457 | Dec 16, 2025 |
| Nov 28, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +76,360 | $0.64 | $49k | 6,459,985 | Dec 1, 2025 |
| Nov 25, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +55,732 | $0.63 | $35k | 6,383,625 | Nov 26, 2025 |
| Nov 21, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +56,080 | $0.68 | $38k | 6,327,893 | Nov 24, 2025 |
| Nov 20, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +51,315 | $0.62 | $32k | 6,271,813 | Nov 21, 2025 |
| Nov 19, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +61,614 | $0.65 | $40k | 6,220,498 | Nov 20, 2025 |
| May 23, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +34,004 | $0.45 | $15k | 6,158,884 | May 27, 2025 |
| May 22, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +141,825 | $0.44 | $63k | 6,124,880 | May 23, 2025 |
| May 21, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +174,172 | $0.47 | $82k | 5,983,055 | May 22, 2025 |
| May 20, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +147,563 | $0.45 | $66k | 5,808,883 | May 21, 2025 |
| May 19, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +79,254 | $0.43 | $34k | 5,661,320 | May 20, 2025 |
| Apr 24, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +254,618 | $0.40 | $102k | 5,582,066 | Apr 28, 2025 |
| Apr 24, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +177,234 | $0.40 | $71k | 5,327,448 | Apr 25, 2025 |
| Apr 23, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +205,000 | $0.40 | $82k | 5,150,214 | Apr 24, 2025 |
| Apr 22, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +175,000 | $0.36 | $63k | 4,945,214 | Apr 23, 2025 |
| Apr 21, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +654,912 | $0.32 | $208k | 4,770,214 | Apr 22, 2025 |
| Mar 4, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +85,714 | $0.53 | $45k | 4,115,302 | Mar 5, 2025 |
| Mar 3, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +132,572 | $0.49 | $65k | 4,029,588 | Mar 4, 2025 |
| Feb 24, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +354,296 | $0.56 | $200k | 3,897,016 | Feb 25, 2025 |
| Jan 30, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +51,414 | $0.66 | $34k | 4,255,103 | Jan 31, 2025 |
| Jan 22, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +38,900 | $0.77 | $30k | 4,203,689 | Jan 23, 2025 |
| Jan 17, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +29,158 | $0.86 | $25k | 4,164,789 | Jan 21, 2025 |
| Jan 16, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +47,904 | $0.84 | $40k | 4,135,631 | Jan 17, 2025 |
| Jan 15, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +62,500 | $0.80 | $50k | 4,087,727 | Jan 16, 2025 |
| Jan 14, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +87,247 | $0.69 | $60k | 4,025,227 | Jan 15, 2025 |
| Jan 13, 2025 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +163,666 | $0.61 | $100k | 3,937,980 | Jan 14, 2025 |
| Dec 20, 2024 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.001 | +257,334 | $0.58 | $150k | 3,774,314 | Dec 26, 2024 |
| Feb 16, 2024 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $.00110b5-1 | +60,000 | $0.83 | $50k | 1,394,597 | Feb 21, 2024 |
| Oct 12, 2023 | COSM Cosmos Health Inc. | POpen-market purchase Common Stock, par value $0.001 per share | +6,712 | $23.66 | $159k | 1,334,597 | Oct 12, 2023 |
Questions about Grigorios Siokas
Answered from the filings on this page, as of the latest one.
Is Grigorios Siokas buying or selling?
In the last 12 months Grigorios Siokas reported 20 open-market buys worth $1.7M and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $70k of COSM on Jul 30, 2026. Grants, option exercises and tax withholding are not counted.
How did Grigorios Siokas's past buys perform?
Measured from the first close after each filing, the stock trailed the S&P 500 by a median 50.7% over six months across 38 past buys, with 37% ahead of the index. Past results describe what happened; they do not predict the next trade.
Where does Grigorios Siokas file Form 4?
Grigorios Siokas has filed Form 4 at COSM (Cosmos Health Inc.) as Chief Executive Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.